Grasias for your time ..... I did not take into account the detail of checking the entrance to the relay as it turned on the light inside .... the compressor sounded annoying but it associated it with the vibrations since it is large it must be 3 / 4 or more ... under open voltage but not at that time ... I also noticed that in a frezzer from the same address did not start probe changing thermal relay and nothing ... change the thermostat and left walking ... It will be . They burned both thermostat from low voltage ...